Ankle brace



FIG. 1 is a perspective view of an ankle brace.

FIG. 2 is a first side view of an ankle brace.

FIG. 3 is a second side view of an ankle brace.

FIG. 4 is a front view of an ankle brace.

FIG. 5 is a back view of an ankle brace.

FIG. 6 is a top view of an ankle brace; and,

FIG. 7 is a bottom view of an ankle brace.

The broken lines in the Figures do not form a part of the claimed design. 

CLAIM The ornamental design for an ankle brace, as shown and described. 